Amazing – Trapped in time, a wasp from 90 million years ago!
Amazing – Trapped in time, a wasp from 90 million years ago! pic.twitter.com/EXZuprQQAN — Universal-Sci (@universal_sci) 9. November 2018
Tag Archives: million years ago
A walk through poppy seeds yields a model for paleontology
What could a guineafowl strolling through a bed of poppy seeds have to do with a dinosaur footprint made 200 million years ago?
PROVIDENCE, R.I. [Brown University] — Stephen Gatesy, professor of ecology and evolutionary biology at Brown, and his former postdoctoral fellow Peter Falkingham, now at the Royal Veterinary College in the United Kingdom, used measurements from X-ray videos of the 3-D foot movement of a chicken-like bird as an input for a computer simulation of a substrate of poppy seeds. In this way, they could visualize the displacement of seeds through time and study the “birth” of tracks at different depths. The researchers then used the model to clarify previously unexplained features of a Jurassic dinosaur track. (more…)
Doubt cast on global firestorm generated by dino-killing asteroid
Pioneering new research has debunked the theory that the asteroid that is thought to have led to the extinction of dinosaurs also caused vast global firestorms that ravaged planet Earth.
A team of researchers from the University of Exeter, University of Edinburgh and Imperial College London recreated the immense energy released from an extra-terrestrial collision with Earth that occurred around the time that dinosaurs became extinct. They found that the intense but short-lived heat near the impact site could not have ignited live plants, challenging the idea that the impact led to global firestorms. (more…)
Tooth pushes back modern monkeys’ first ancestor three million years
The ancestor of all modern African monkeys was alive 3 million years earlier than previously thought and coexisted with members of a now-extinct branch of the monkey family tree, according to new evidence from anthropologists.
“We pushed back the origin of modern monkeys by a huge chunk of time,” said anthropologist Andrew Hill of Yale University, the senior researcher on the project. “This means there are all sorts of things we can think about. You can start to look at animal interactions that might have taken place.” (more…)
English Literature Influenced Prize-Winning Paleontologist
For a short time in grade school, Kevin Boyce lived within two blocks of the La Brea tar pits in Los Angeles, a place where ice age mammal fossils had been discovered. Above his bed hung a poster of the Yale Peabody Museum’s famous Age of Reptiles mural. But it wasn’t a boyhood fascination with prehistoric life that influenced his interest in paleontology, but rather the medieval literary world of Chaucer that Boyce discovered in college.
“I didn’t think twice about fossils between the ages of 7 and 20,” said Boyce, associate professor in geophysical sciences. Even during his undergraduate studies in literature and biology at the California Institute of Technology in the early 1990s, the deep history of life on Earth was far from his mind. (more…)